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 /* NRDF D1634 Data No.2                                              */
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 /* Bibliography                                                      */
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 \\BIB,2;
 D#=D1634;
 TITLE=/ Study of the n p -> p p pi- reaction in the incident neutron
         momentum range 1.0-1.9 GeV/c /;
 PURPOSE=/ To study the neutron-proton singe-pion production reaction
           n p -> p p pi- in the incident neutron momentum range
           1.0-1.9 GeV/c. /;
 ATH=(T.TSUBOYAMA'1', N.KATAYAMA'1', F.SAI'1', S.S.YAMAMOTO'1');
 INST-ATH=(2JPNTOK'1');
      /* '1' Department of Physics */
 REF=NP/A;
 VLP=486(1988)669;
 RCTS=(P(D,PIN,P,P)P, P(N,PIN,P)P, P(P,PI0,P)P);
 PHQS=(TOT-XSECTN, XSECTN'2', ANGL-DSTRN);
 /* '2' Nucleon-nucleon single-pion production cross sections,
    Sigma(01) where 0, 1 are initial and final two-nucleon isospins
    respectively */
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 /* Experimental Conditions                                           */
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 \\EXP,2;
 /* 2003-10-01 : Compiled */
 CHM=ELM;
 PHYS-FORM=LIQD;
 POL-TGT=0%;
 ALGN-TGT=0%;
 ACC=SYN'3';
 /* '3' 12GeV proton synchrotron */
 INST-ACC=2JPNKEK;
 POL-PRJ=0%;
 ION-SOURCE=/ Spallation(Momenta of secondary beam of deuterons were
              determined from the kinematical fit of fully constrained
              dp -> ppppi- events.) /;
 DET-PARTCL=(PIN,P);
 COINC=(P,PIN);
 ANT-COINC=NO;
 DET-SYS=BUBBLC'4';
 /* '4' 1m liquid-hydrogen bubble chamber */
 RCT=P(N,PIN,P)P;
 PHQ=TOT-XSECTN;
 INC-MOM-LAB=(1.04MEV/C, 1.14MEV/C, 1.25MEV/C, 1.34MEV/C, 1.44MEV/C,
              1.48MEV/C, 1.59MEV/C, 1.69MEV/C, 1.79MEV/C, 1.89MEV/C);
 ANL=(X'6',X'7');
 /* '6' Prediction by VerWest and Arndt [B.J.VerWest and R.A.
        Arndt, Phys.Rev.C25(1982)1979.] */
 /* '7' Deck Model with and without an I=0 dibaryon by Jauch et al.
        [W.Jauch et al., Phys.Lett.B143(1984)509.] */
 /* Analysis:
    - The np->pp pi data are derived from dp->ppp pi- reaction events
      using the impulse approximation.
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 /* Descriptive Parameters                                            */
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 \\DATA,2;
 INC-MOM-LAB=(1.04MEV/C, 1.14MEV/C, 1.25MEV/C, 1.34MEV/C, 1.44MEV/C,
              1.48MEV/C, 1.59MEV/C, 1.69MEV/C, 1.79MEV/C, 1.89MEV/C);
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 /* Data Table                                                        */
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 \DATA;
 MOM'8' SIGMA DELTA-SIGMA'9' DELTA-SIGMA'10'
 (GEV/C) (MB) (MB) (MB)
 1.04 0.19 +-0.03 +-0.00
 1.14 0.67 +-0.04 +-0.01
 1.25 1.19 +-0.08 +-0.03
 1.34 1.85 +-0.08 +-0.05
 1.44 2.14 +-0.09 +-0.05
 1.48 2.24 +-0.09 +-0.05
 1.59 2.38 +-0.09 +-0.05
 1.69 2.65 +-0.10 +-0.06
 1.79 2.78 +-0.10 +-0.06
 1.89 3.23 +-0.11 +-0.07
 \END;
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